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Knee joint gap measuring method and device, terminal equipment and readable storage medium

A measurement method and knee joint technology, applied in the field of medical devices, can solve the problems of cumbersome measurement process, unguaranteed measurement accuracy, easy to produce errors, etc., and achieve the effects of simple measurement process, less error, and high measurement accuracy

Pending Publication Date: 2022-02-11
LANCET ROBOTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The manual measurement of the above-mentioned knee joint gap measurement method makes the measurement process very cumbersome, and errors are prone to occur, and the accuracy of the measurement cannot be guaranteed

Method used

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  • Knee joint gap measuring method and device, terminal equipment and readable storage medium
  • Knee joint gap measuring method and device, terminal equipment and readable storage medium
  • Knee joint gap measuring method and device, terminal equipment and readable storage medium

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Embodiment 1

[0050] See figure 1 , an embodiment of the present application proposes a method for measuring knee joint clearance, the method comprising the following steps:

[0051] Step S100, determine the real-time target pose relationship between the femoral osteotomy plane to be measured and the tibial osteotomy plane according to the pose relationship between the visual sensor, the femoral measurement board, the femoral tracker, the tibial measurement board, and the tibia tracker. The femur measuring plate is fitted to the femur osteotomy plane to be measured, and the tibial measuring plate is fitted to the tibial osteotomy plane.

[0052] It can be understood that the femur includes the front end of the femur, the anterior oblique of the femur, the distal end of the femur, the posterior oblique of the femur and the posterior end of the femur.

[0053] Exemplary, see figure 2 , In this embodiment, a schematic diagram of a femur is given, showing the front end of the femur 2, the an...

Embodiment 2

[0079] See Figure 7 , another embodiment of the present application proposes a knee joint gap measurement device 10 , which includes: a pose determination module 11 , an included angle calculation module 12 and a distance calculation module 13 .

[0080]The pose determining module 11 is used to determine the real-time target between the femoral osteotomy plane to be measured and the tibial osteotomy plane according to the pose relationship between the visual sensor, the femoral measuring board, the femoral tracker, the tibial measuring board and the tibial tracker Positive relationship, the femur measurement board fits with the femur osteotomy plane to be measured, and the tibial measurement board fits with the tibial osteotomy plane; the included angle calculation module 12 is used to Postural relationship calculates the real-time normal angle between the normal of the femur osteotomy plane to be measured and the normal of the tibial osteotomy plane; the distance calculation...

Embodiment 3

[0089] The third embodiment of the present application proposes a terminal device, including a memory and a processor, the memory stores a computer program, and when the computer program runs on the processor, it executes the method described in the above-mentioned embodiments of the present application. Knee joint space measurement method.

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Abstract

The invention discloses a knee joint gap measuring method and device, terminal equipment and a readable storage medium, and the method comprises the steps: determining a real-time target pose relationship between a to-be-measured femur osteotomy plane and a tibia osteotomy plane according to a pose relationship among a visual sensor, a femur measuring plate, a femur tracker, a tibia measuring plate and a tibia tracker; attaching the femur measuring plate to the to-be-measured femur osteotomy plane, and attaching the tibia measuring plate to the tibia osteotomy plane; calculating a real-time normal included angle between the normal of the to-be-measured thighbone osteotomy plane and the normal of the tibia osteotomy plane according to the real-time target pose relationship; and when the real-time normal included angle is equal to zero, calculating the distance between the tibia osteotomy plane and the to-be-measured thighbone osteotomy plane according to the current target pose relationship. The knee joint gap measuring process is very simple, errors are not prone to being generated, and the measuring precision is higher.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a knee joint gap measurement method, device, terminal equipment and readable storage medium. Background technique [0002] The traditional method of measuring the knee joint space is to take anteroposterior and posterior X-ray films of the knee joint in the supine and upright positions, and measure the vertical distance between the lowest points of the medial and lateral femoral condyles and the articular surface of the tibial plateau with a divider on the X-ray films, so as to obtain the knee joint clearance. Inner and outer gap values. Or use a measuring block to perform manual measurement. For different sizes of knee joint gaps, measuring blocks of different thicknesses need to be replaced. [0003] The manual measurement of the above-mentioned knee joint gap measurement method makes the measurement process very cumbersome, and errors are prone to occur, and the accuracy of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/107A61B5/00
CPCA61B5/1072A61B5/1079A61B5/4585
Inventor 刘金勇黄志俊钱坤王昱涵
Owner LANCET ROBOTICS CO LTD
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